MAINTENANCE ENGINEERING

Course objectives
The objective of this course is to make students conversant with various maintenance practices popular in Industries .

1. Maintenance (6 hours)
1. Concept, Scope, Objectives and Challenges
2. Types of Maintenance System
3. Breakdown Maintenance
4. Planned Maintenance
5. Scheduled Maintenance
6. Preventive Maintenance
7. Corrective Maintenance
8. Condition Based Maintenance
9. Reliability Centered Maintenance
10. Seasonal Maintenance
11. Over haul
12. Difference between repair and maintenance
13. Terro technology
14. Maintenance practice in Nepal
15. Benefits of maintenance
16. Principles of maintenance


2. Maintenance management (10 hours)
1. Maintenance management
1. Introduction
2. Planning of Maintenance function
3. Manpower allocation
4. Long range planning
5. Short range planning
6. Planning techniques
7. Planning procedures
8. Maintenance control
2. Organization structure for maintenance
1. Maintenance function and Activities
2. Types of maintenance organization
3. Cost minimization in maintenance organization
3. Quality and quality circle in maintenance
4. Reliability and reliability engineering
5. Economic aspects of maintenance
1. Introduction
2. Life cycle cost
3. Maintenance budget
4. Maintenance cost
5. Cost control


3. Maintenance equipment and facilities (2 hours)
1. Introduction
2. Workshops
3. Stones


4. Lubricants (3 hours)
1. Introduction
2. Tribology
3. Lubrication system
4. Purpose of lubrication
5. Types of lubrication


5. Condition monitoring technologies (10 hours)
1. Vibration Measurement and analysis
2. Ultrasonic evaluation
3. Motor current analysis
4. Thermography
5. Gas leakage detection
6. Oil and lubricant analysis
7. Alignment of shaft
8. Types of non-destructive testing


6. Maintenance of Mechanical System (8 hours)
1. Introduction
2. Bearings
3. Friction clutches
4. Coupling
5. Fastening devices
6. Chains
7. Gear drives
8. Support equipments
1. Cooling towers
2. Air Compressors
3. Centrifugal compressors
4. Air cooled condensers
5. Dampers
6. Fans
7. Heat Pumps


7. Maintenance of Industrial electrical equipments (6 hours)
1. Maintenance of Industrial wiring system
2. Electrical motors and its controls with protective devices.
3. Generators and batteries
4. Transformers

Practicals:

1. Observation and exercises on
1. Corrective/breakdown maintenance
2. Scheduled / planed maintenance
3. preventive/periodical maintenance
4. Predictive maintenance
5. Improvement maintenance
6. Seasonal maintenance
7. Overhaul


2. Trouble shooting and remedy
1. Conventional machines
2. Conventional machine tools
3. Conventional equipment


3. Exercises
1. Check oil levels, grease condition, adjust tension
2. Repair blocks parts (welding & machining) replacing bushes, bearings, locks, springs
3. Produce new parts / replace old components / torn or worn parts.
4. Produce new parts with improved design to enhance efficiency and quality.


4. Maintenance management practice
1. Prepare inventory data of various machines / equipment in the department/ campus.
2. Prepare maintenance records:
3. Log book, charts, and schedule sheets


5. Maintenance of following machines and equipment (Visiting and observation)
1. Plain Bearings
2. Rolling-Element Bearings
3. Flexible Couplings for Power Transmission
4. Chains for Power Transmission
5. Cranes: Overhead and Gantry
6. Chain Hoist
7. Belt Drives
8. Mechanical Variable-Speed Drives
9. Gear Drives and Speed Reducers
10. Reciprocating Air Compressors
11. Valves
12. Pumps: Centrifugal and Positive Displacement

Note: Industrial visit of 5 days in different industries in Nepal to know the real time maintenance practices.
References:

1. P. GARG , Industrial Maintenance ,Lakshmi Publishers
2. Campbell, J. D. “Maintenance Excellence (Optimizing Equipment Life- Cycle Decision)”, Marcel Dekker ,2001
3. Moubray, J., “Reability-centred Maintenance”, Butterworth-Heinemann 1991
4. Palmer, D, “Maintenance Planning and Scheduling Handbook”, McGraw Hill 1999
5. Collacott, R.A., “Mechanical Fault Diagnosis and Condition Monitoring”, Chapman and Hall

Evaluation Scheme:
The Questions will cover all the chapters in the syllabus. The evaluation scheme will be as indicated in the table below: